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Hand model generation method, device, terminal equipment and hand motion capture method

A hand model and hand movement technology, applied in the field of motion capture, can solve problems such as inaccurate hand models

Active Publication Date: 2020-07-17
SHENZHEN REALIS MULTIMEDIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present application provides a hand model generation method, device and hand motion capture method to solve the problem in the prior art that the hand model generated is inaccurate due to simple proportional scaling of the initial hand model

Method used

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  • Hand model generation method, device, terminal equipment and hand motion capture method
  • Hand model generation method, device, terminal equipment and hand motion capture method
  • Hand model generation method, device, terminal equipment and hand motion capture method

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Experimental program
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Effect test

Embodiment 1

[0045] The inventors of the present application found in practice that when the existing glove layout is used for motion capture, if the user's hand is too small, the distance between the two reflective marker points is too close during the hand motion capture process, so that the algorithm cannot Identify the correct reflective markers. In order to ensure that the algorithm can correctly identify each reflective marking point during hand movement, the inventors of the present application proposed a new layout idea for the reflective marking points of motion capture gloves.

[0046] Aiming at the problem that the distance between the reflective marking points on the glove is too close for the user’s hand to be too small to accurately identify the marking points, when the motion capture glove of this application lays out the marking points, it aims at the marking points on the second, third, and fourth knuckles of the finger. When laying out, not all marker points are placed di...

Embodiment 2

[0049] Such as image 3 As shown, it is a schematic flowchart of the first embodiment of a hand model generation method applied to hand motion capture provided by the present invention. The hand model generation method includes:

[0050] S300. Establish a three-dimensional coordinate system, and project the preset hand model onto a plane formed by the first axis and the second axis in the three-dimensional coordinate system to obtain an initial hand model.

[0051] A three-dimensional coordinate system is established, and the preset hand model (three-dimensional model) is projected onto the plane formed by the first axis and the second axis of the three-dimensional coordinate system to obtain an initial hand model. Wherein, the first axis and the second axis may be any two axes among x, y, and z axes. The corresponding initial hand model is a two-dimensional image without thickness. In all the embodiments below, the first axis is the x-axis, the second axis is the z-axis, a...

Embodiment 4

[0118] Such as Figure 7 As shown, it is a schematic flowchart of the third embodiment of a hand model generation method applied to hand motion capture provided by the present invention. The hand model generation method includes:

[0119] In step S700, a three-dimensional coordinate system is established, and the preset hand model is projected onto the plane formed by the first axis and the second axis in the three-dimensional coordinate system to obtain an initial hand model.

[0120] S701. The plane where the current user's palm is located coincides with the plane formed by the first axis and the second axis in the three-dimensional coordinate system, and the initial orientation of all fingers of the user coincides with the first axis, that is, the plane where the current user's palm is located coincides with the x-z plane and all fingers are oriented towards the x-axis.

[0121] S702. According to the received hand movement data of the current user, obtain the position in...

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Abstract

The present application discloses a hand model generation method, device, terminal equipment, and hand motion capture method system. The hand model generation method comprises: establishing a three-dimensional coordinate system, and projecting a preset hand model onto the plane formed by the first axis and the second axis in the three-dimensional coordinate system to obtain the initial hand model;enabling the plane where the palm of the current user is located to be overlapped with the plane formed by the first axis and the second axis in the three-dimensional coordinate system, and enablingall the fingers of the user to be initially oriented toward the first axis; according to the received hand movement data of the current user and the initial hand model, calculating the current user'smetacarpal expansion and finger knuckle length to generate a middle hand model; determining a knuckle rotation center of each finger knuckle of the middle hand model; and generating the final hand model according to the metacarpal expansion range, the length of the finger knuckles, and the knuckle rotation center of each finger knuckle.

Description

technical field [0001] The present invention relates to motion capture technology, in particular to a hand model generation method, device, terminal equipment and hand motion capture method. Background technique [0002] Motion capture technology (Motion capture, referred to as Mocap) refers to setting a tracker on the key part of a moving object, and the motion capture system captures the position of the tracker, and then obtains the data of three-dimensional space coordinates after computer processing. When the three-dimensional space coordinate data is recognized by the computer, it can be applied in animation production, gait analysis, biomechanics, ergonomics and other fields. Especially in the field of movie special effects, the real-life images captured by multiple cameras are replaced with digital models to capture and record the actions of the actors during performances, and then synchronize these actions to the virtual characters in the computer, so that the action...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F3/01
CPCG06F3/014G06V40/28Y02T90/00
Inventor 杭建伟赵晓琴许秋子
Owner SHENZHEN REALIS MULTIMEDIA TECH CO LTD
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